KR100589261B1 - recycling system of waste gas - Google Patents

recycling system of waste gas Download PDF

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KR100589261B1
KR100589261B1 KR1020040010713A KR20040010713A KR100589261B1 KR 100589261 B1 KR100589261 B1 KR 100589261B1 KR 1020040010713 A KR1020040010713 A KR 1020040010713A KR 20040010713 A KR20040010713 A KR 20040010713A KR 100589261 B1 KR100589261 B1 KR 100589261B1
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South Korea
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exhaust gas
heat exchange
engine
pipe
exhaust
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KR1020040010713A
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Korean (ko)
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KR20050082294A (en
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이명길
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현대모비스 주식회사
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
    • E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
    • E01F13/08—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage by swinging into closed position about a transverse axis situated in the road surface, e.g. tiltable sections of the road surface, tiltable parking posts
    • E01F13/085—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage by swinging into closed position about a transverse axis situated in the road surface, e.g. tiltable sections of the road surface, tiltable parking posts specially adapted for individual parking spaces
    • G—PHYSICS
    • G08—SIGNALLING
    • G08G—TRAFFIC CONTROL SYSTEMS
    • G08G1/00—Traffic control systems for road vehicles
    • G08G1/14—Traffic control systems for road vehicles indicating individual free spaces in parking areas
    • G08G1/149—Traffic control systems for road vehicles indicating individual free spaces in parking areas coupled to means for restricting the access to the parking space, e.g. authorization, access barriers, indicative lights

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Exhaust-Gas Circulating Devices (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

본 발명은 엔진에서 배출되는 냉각수를 안내하는 배관과 엔진에서 배출되는 고온의 배기가스를 안내하는 배관을 열교환부재로 연결하여 냉각수를 고온의 배기가스와 열교환함으로써 2차 가열된 냉각수를 히터코어로 순환시켜 난방효율을 높이고, 배기가스의 온도를 낮춤으로써 배기오염을 줄이며, 간단한 구조로 설치할 수 있는 자동차의 배기가스 열교환 구조에 관한 것이다.The present invention connects a pipe for guiding the coolant discharged from the engine and a pipe for guiding the hot exhaust gas discharged from the engine to a heat exchange member, thereby circulating the second heated coolant to the heater core by exchanging the coolant with the hot exhaust gas. The present invention relates to an exhaust gas heat exchange structure of a vehicle that can be installed with a simple structure by increasing heating efficiency and reducing exhaust gas temperature to reduce exhaust pollution.

본 발명에 따른 자동차의 배기가스 열교환 구조는 자동차의 엔진으로부터 배출되는 냉각수를 히터코어로 유입하기 위해 안내하는 안내관과, 엔진으로부터 배출되는 배기가스를 안내하는 배기관과, 상기 안내관의 냉각수와 상기 배기관의 배기가스 상호간에 열교환 작용을 수행하는 열교환부재를 포함하여 이루어진 것을 특징으로 한다.Exhaust gas heat exchange structure of the vehicle according to the present invention includes a guide pipe for guiding the cooling water discharged from the engine of the vehicle to the heater core, an exhaust pipe for guiding the exhaust gas discharged from the engine, the coolant and the It characterized in that it comprises a heat exchange member for performing a heat exchange action between the exhaust gases of the exhaust pipe.

엔진, 배기가스 재순환, EGR, 라디에이터, 엔진, EGR 쿨러, 히터코어   Engine, Exhaust Gas Recirculation, EGR, Radiator, Engine, EGR Cooler, Heater Core

Description

자동차의 배기가스 열교환 구조{recycling system of waste gas}Recycling system of waste gas

도 1은 종래 배기가스 열교환 구조를 보인 계통도.1 is a system diagram showing a conventional exhaust gas heat exchange structure.

도 2는 본 발명에 따른 차량의 배기가스 열교환 구조를 보인 계통도.2 is a system diagram showing an exhaust gas heat exchange structure of a vehicle according to the present invention;

도 3은 본 발명에 따른 차량의 배기가스 열교환 구조의 열교환부재를 보인 요부 단면도.Figure 3 is a sectional view of the main part showing a heat exchange member of the exhaust gas heat exchange structure of the vehicle according to the present invention.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1,101: 엔진 3,103: 배기다기관 1,101: engine 3,103: exhaust manifold

7,107: 흡기다기관 9,109: 라디에이터 7,107: intake manifold 9,109: radiator

13,113: 히터코어 15,115: EGR 쿨러 13,113: Heater core 15,115: EGR cooler

17,117: EGR 밸브 110: 순환관17,117: EGR valve 110: circulation pipe

120: 안내관 130: 배기관120: guide 130: exhaust pipe

140: 열교환부재 142: 유입관140: heat exchange member 142: inlet pipe

144: 열교환관 146: 유출관144: heat exchanger tube 146: outlet tube

150: 삼방밸브 160: 체크밸브150: three-way valve 160: check valve

본 발명은 자동차의 배기가스 열교환 구조에 관한 것으로, 보다 상세하게는 엔진에서 배출되는 냉각수를 안내하는 배관과 엔진에서 배출되는 고온의 배기가스를 안내하는 배관을 열교환부재로 연결하여 냉각수를 고온의 배기가스와 열교환함으로써 2차 가열된 냉각수를 히터코어로 순환시켜 난방효율을 높이고, 배기가스의 온도를 낮춤으로써 배기오염을 줄이며, 간단한 구조로 설치할 수 있는 자동차의 배기가스 열교환 구조에 관한 것이다.The present invention relates to an exhaust gas heat exchange structure of an automobile, and more particularly, a pipe for guiding cooling water discharged from an engine and a pipe for guiding high temperature exhaust gas discharged from an engine are connected to a heat exchange member to exhaust the cooling water at a high temperature. The present invention relates to an exhaust gas heat exchange structure of a vehicle which can be installed in a simple structure by circulating secondary heated cooling water to a heater core to increase heating efficiency, and to reduce exhaust pollution by lowering the temperature of exhaust gas.

일반적으로, 차량에서는 차내를 난방하기 위한 난방장치가 구비되어 있는데, 이러한 차량 난방장치는 엔진에서 가열되어 배출된 냉각수를 히터코어에 공급함으로써 냉각수의 열을 이용하여 난방을 하고 있다.In general, a vehicle is provided with a heating device for heating the inside of the vehicle, and the vehicle heating device uses the heat of the cooling water to supply the cooling water discharged from the engine to the heater core.

또한, 최근 들어 자동차에 의한 배출가스 저감을 위해 배기가스재순환시스템(Exhaust Gas Recirculation System)을 채용하고 있는 차량이 늘어나고 있을 뿐만 아니라 점차 강화되는 배기가스 규제를 만족시키기 위해 재순환되는 배기가스의 온도를 낮추기 위한 배기가스재순환쿨러(Exhaust Gas Recirculation cooler)를 채용함으로써 배출가스를 저감시키고 있는 차량들도 늘어나고 있다.In addition, the number of vehicles employing the Exhaust Gas Recirculation System to reduce the emissions by automobiles has been increasing recently, and the temperature of the exhaust gas being recycled to satisfy the stricter exhaust gas regulations has been lowered. Increasingly, vehicles are reducing emissions by employing exhaust gas recirculation coolers.

도 1에 도시된 바와 같이, 종래의 배기가스는 엔진(1)에서 배기다기관(3)을 통해 소음기로 배출되어 흡기다기관(7)을 통해 엔진(1)으로 공급하도록 되어 있다.As shown in FIG. 1, the conventional exhaust gas is discharged from the engine 1 through the exhaust manifold 3 to the silencer and supplied to the engine 1 through the intake manifold 7.

또한, 상기 라디에이터(9)는 엔진(1)에서 가열되어 배출된 고온의 냉각수를 냉각시켜서 엔진(1)으로 재순환시킴으로써 엔진(1)을 냉각시키도록 되어 있고, 가 열장치(11)는 엔진(1)에서 배출된 고온의 냉각수를 전기식 히터 또는 연료버너를 이용하여 2차로 가열한 후 히터코어(13)로 공급하도록 되어 있다.In addition, the radiator 9 is configured to cool the engine 1 by cooling the high temperature cooling water discharged from the engine 1 and recirculating it to the engine 1, and the heating device 11 is configured to cool the engine ( The high temperature cooling water discharged from 1) is heated second by using an electric heater or a fuel burner and then supplied to the heater core 13.

그리고, 상기 히터코어(13)는 가열장치(11)에 의해 2차로 가열되어 공급된 냉각수의 열을 이용하여 차내를 난방시킨 다음 엔진(1)으로 냉각수를 재순환시키도록 되어 있다.The heater core 13 is configured to heat the inside of the vehicle by using the heat of the cooling water supplied by being heated by the heating device 11 and then recycle the cooling water to the engine 1.

한편, 상기 배기다기관과 흡기다기관 사이에 개재되는 EGR 쿨러(15)는 엔진(1)에서 배출된 냉각수를 이용하여 엔진(1)에서 배기다기관(3)을 통해 공급되는 배기가스를 냉각시킨 다음 흡기다기관(7)을 통해 엔진(1)으로 재순환시키도록 되어 있고, 상기 EGR 밸브(17)는 배기다기관(3)과 EGR 쿨러(15)를 연결하는 배기가스재순환통로상에 설치되어 재순환되는 배기가스량을 제어하도록 되어 있다.Meanwhile, the EGR cooler 15 interposed between the exhaust manifold and the intake manifold cools the exhaust gas supplied from the engine 1 through the exhaust manifold 3 using the coolant discharged from the engine 1 and then intakes the air. The exhaust gas is recycled to the engine 1 through the manifold 7, and the EGR valve 17 is installed on the exhaust gas recirculation passage connecting the exhaust manifold 3 and the EGR cooler 15 to be recycled. To control.

그러나, 종래의 차량 난방장치는 EGR 쿨러에서 배기가스와 열교환된 냉각수를 엔진에서 배출 후 2차 가열하기 위해 별도의 가열장치를 구비하였기 때문에 난방시스템의 구조가 복잡하였고, 설치비용도 증가하게 되는 문제점이 있었다.However, the conventional vehicle heating device has a complicated structure of the heating system because it is equipped with a separate heating device for secondary heating of the cooling water heat-exchanged with the exhaust gas from the EGR cooler after the engine is discharged from the engine, the installation cost is also increased. There was this.

본 발명은 상기한 종래 기술의 문제점을 해결하고자 제안된 것으로서, 엔진에서 히터코어로 냉각수를 안내하는 안내관과 엔진에서 고온의 배기가스를 배기하는 배기관을 열교환부재로 연결함으로써 상호 열교환되어 2차 가열된 냉각수로 인해 난방성능을 향상시키고, 상대적으로 배기가스의 온도를 낮춰 Nox 등의 유해성분의 활성화를 막아 배기가스의 오염도를 낮추는 간단한 구조의 자동차의 배기가스 열교환 구조를 제공하려는 것이다.
The present invention has been proposed to solve the above-mentioned problems of the prior art, and is heat exchanged with each other by connecting a guide tube for guiding the coolant from the engine to the heater core and an exhaust pipe for exhausting the high temperature exhaust gas from the engine with a heat exchange member. It is to provide an exhaust gas heat exchange structure of a vehicle having a simple structure that improves heating performance and lowers the temperature of the exhaust gas to prevent activation of harmful components such as Nox, thereby lowering the pollution of the exhaust gas.

상기한 목적을 달성하기 위한 본 발명은 히터코어(HeaterCore)와 엔진을 연결하여 냉각수를 유동시키는 안내관 및 EGR 쿨러(Exhaust Gas Recirculation Cooler)와 엔진을 연결하여 배기가스를 배출하는 배기관을 열교환부재로 연결하여 열교환되며 2차 가열된 냉각수를 통해 난방효율을 높이고, 온도가 낮게 된 배기가스를 분출함으로써 오염도를 줄이고자 한 자동차의 배기가스 열교환 구조를 제공하려는 것이다.The present invention for achieving the above object is connected to a heater core (engine HeaterCore) and the engine flows the cooling water, and the exhaust pipe connected to the EGR cooler (Exhaust Gas Recirculation Cooler) and the engine to discharge the exhaust gas as a heat exchange member It is intended to provide an exhaust gas heat exchange structure of a vehicle to reduce pollution by increasing the heating efficiency through the secondary heat-cooled and the second heated cooling water and spouting the exhaust gas having a lower temperature.

이하, 본 발명의 실시예를 첨부한 도면을 참조하여 더욱 상세히 설명한다. Hereinafter, with reference to the accompanying drawings an embodiment of the present invention will be described in more detail.

도 2는 본 발명에 따른 차량의 배기가스 열교환 구조를 보인 계통도이고, 도 3은 본 발명에 따른 차량의 배기가스 열교환 구조의 열교환부재를 보인 요부 단면도이다.2 is a schematic diagram showing the exhaust gas heat exchange structure of the vehicle according to the present invention, Figure 3 is a cross-sectional view of the main portion showing the heat exchange member of the exhaust gas heat exchange structure of the vehicle according to the present invention.

도 2 및 도 3에 도시된 바와 같이, 본 발명에 따른 자동차의 배기가스 열교환 구조는 자동차의 엔진(101)으로부터 배출되는 냉각수를 히터코어(113)로 유입하기 위해 안내하는 안내관(120)과, 엔진(101)으로부터 배출되는 배기가스를 안내하는 배기관(130)과, 상기 안내관(120)의 냉각수와 상기 배기관(130)의 배기가스 상호간에 열교환 작용을 수행하는 열교환부재(140)를 포함하여 이루어진 것을 특징으로 한다.As shown in Figures 2 and 3, the exhaust gas heat exchange structure of the vehicle according to the present invention and the guide pipe 120 for guiding the cooling water discharged from the engine 101 of the vehicle to enter the heater core 113 and , An exhaust pipe 130 for guiding the exhaust gas discharged from the engine 101, and a heat exchange member 140 performing heat exchange between the cooling water of the guide pipe 120 and the exhaust gas of the exhaust pipe 130. Characterized in that made.

도 2에 도시된 바와 같이, 차량의 내부에 구비되는 라디에이터(radiator,109)는 엔진(101)과 연결되어 엔진(101)의 작동시 상승하는 온도를 하강시키도록 냉각수를 순환시킨다.As shown in FIG. 2, a radiator 109 provided inside the vehicle circulates the coolant to be connected to the engine 101 to lower the temperature rising during the operation of the engine 101.

즉, 상기 냉각수는 제 1관(111)을 통해 라디에이터(109)로부터 엔진(101)의 외부에 공급되어 엔진(101)에서 가열되어 배출된 고온의 열기를 냉각시킴과 아울러 고온의 열에너지를 빼앗아 제 2관(112)을 통해 라디에이터(109)로 되돌아와 공랭식으로 그 열기를 외부와 열교환하게 된다.That is, the cooling water is supplied from the radiator 109 to the outside of the engine 101 through the first pipe 111 to cool the hot air heated and discharged from the engine 101, and also takes away the high temperature heat energy. Returning to the radiator 109 through the two pipes 112, the heat is heat-exchanged with the outside in an air-cooled manner.

또한, 상기 엔진(101)은 히터코어(113)와 연결되어 있다.In addition, the engine 101 is connected to the heater core 113.

상기 엔진(101)과 히터코어(113)는 안내관(120)으로 연결되어 엔진(101)의 열에너지를 빼앗은 냉각수를 히터코어(113)로 배출하게 된다.The engine 101 and the heater core 113 are connected to the guide tube 120 to discharge the coolant from which the heat energy of the engine 101 is taken out to the heater core 113.

한편, 상기 엔진(101)은 EGR 쿨러(115)와도 연결되어 있다.Meanwhile, the engine 101 is also connected to the EGR cooler 115.

즉, 상기 엔진(101)은 작동되면서 발생되는 배기가스를 배기다기관(103)을 거쳐 배기관(130)을 따라 EGR 쿨러(115)로 배기되게 된다.That is, the engine 101 is exhausted to the EGR cooler 115 along the exhaust pipe 130 via the exhaust manifold 103 generated while the engine 101 operates.

이때, 상기 안내관(120)과 배기관(130) 사이에는 열교환부재(140)가 구비되어 안내관(120)과 배기관(130)을 연결한다.At this time, the heat exchange member 140 is provided between the guide pipe 120 and the exhaust pipe 130 to connect the guide pipe 120 and the exhaust pipe 130.

그래서, 상기 안내관(120)의 냉각수는 배기관(130) 내부에서 배기되는 고온의 배기가스와 열교환되며, 2차 가열된 냉각수는 히터코어(113)로 유입되어 난방시 난방효율을 극대화하게 되고, 상대적으로 온도가 낮아진 배기가스는 유해원소의 배출을 감소시키게 된다.Thus, the cooling water of the guide tube 120 is heat-exchanged with the high-temperature exhaust gas exhausted from the exhaust pipe 130, the secondary heated cooling water is introduced into the heater core 113 to maximize the heating efficiency when heating, Relatively cold exhaust gases reduce emissions of harmful elements.

이때, 상기 엔진(101)에서 배기관(130)을 통해 배기되는 배기가스의 온도는 300 내지 600℃ 정도이다. At this time, the temperature of the exhaust gas exhausted through the exhaust pipe 130 in the engine 101 is about 300 to 600 ℃.

한편, 2차 가열된 냉각수는 히터코어(113)에서 차체 난방에 에너지를 빼앗긴 후 순환관(110)을 통해 제 1관(111)을 따라 엔진(101)으로 순환된다.On the other hand, the second heated cooling water is circulated to the engine 101 along the first pipe 111 through the circulation pipe 110 after the energy is deprived of the vehicle body heating in the heater core 113.

또한, 상기 배기관(130)을 따라 EGR 쿨러(115)로 유입된 배기가스는 EGR 파이프(114)를 통해 흡기다기관(107)과 엔진(101)으로 순환된다.In addition, the exhaust gas introduced into the EGR cooler 115 along the exhaust pipe 130 is circulated to the intake manifold 107 and the engine 101 through the EGR pipe 114.

이때, 상기 EGR 파이프(114) 상에는 EGR 밸브(117)가 구비되어 엔진(101)으로 재순환되는 배기가스량을 조절한다.At this time, an EGR valve 117 is provided on the EGR pipe 114 to adjust the amount of exhaust gas recycled to the engine 101.

그리고, 도면에서 실선 지시선( →)은 냉각수의 흐름을 보인 것이고, 점선 지시선( …〉)은 배기가스의 흐름을 보인 것이다.In addition, in the drawing, the solid line indicator (→) shows the flow of the cooling water, and the dotted line leader (…>) shows the flow of the exhaust gas.

한편, 도 3에 도시된 바와 같이, 상기 열교환부재(140)는 안내관(120)과 배기관(130)을 연결하여 냉각수와 배기가스의 열교환이 일어나도록 한다. Meanwhile, as shown in FIG. 3, the heat exchange member 140 connects the guide tube 120 and the exhaust pipe 130 to allow heat exchange between the cooling water and the exhaust gas.

이때, 상기 열교환부재(140)는 안내관(120)과 연결되어 냉각수를 유입하기 위한 유입관(142)과, 냉각수와 배기가스를 열교환하도록 유입관(142)에서 연장되어 배기관(130) 내부에 삽설되는 열교환관(144)과, 상기 열교환관(144)에서 연장되어 열교환된 냉각수를 안내관(120)으로 안내하는 유출관(146)으로 이루어진다.At this time, the heat exchange member 140 is connected to the guide tube 120 and the inlet pipe 142 for introducing the coolant, and the inlet pipe 142 to extend the heat exchange between the coolant and the exhaust gas inside the exhaust pipe 130 The heat exchanger tube 144 to be inserted and the outlet pipe 146 which guides the cooling water extended from the heat exchanger tube 144 and heat-exchanged to the guide tube 120.

상기 열교환부재(140)는 대략 'ㄷ'자 형상으로 이루어지며, 냉각수의 이동통로이다.The heat exchange member 140 is formed in a substantially 'c' shape, and is a moving passage of the cooling water.

그리고, 상기 유입관(142)은 일단을 안내관(120)의 일측에 결합되고, 타단을 배기관(130) 내부에 삽입되게 설치된다.And, the inlet pipe 142 is coupled to one end of the guide tube 120, the other end is installed to be inserted into the exhaust pipe (130).

상기 열교환관(144)의 일단은 유입관(142)의 타단과 결합되며, 배기관(130) 내부에 설치되고, 일정 길이를 갖도록 형성되어 그 내부를 유동하는 냉각수와 배기 관(130) 내부를 유동하는 배기가스가 열평형을 이루도록 한다.One end of the heat exchange tube 144 is coupled to the other end of the inlet pipe 142, is installed in the exhaust pipe 130, is formed to have a predetermined length flows through the cooling water and the exhaust pipe 130 flowing therein Exhaust gas to achieve thermal equilibrium.

그래서, 상기 열교환관(144)은 열전도계수가 큰 재질로 이루어지는 것이 당연하다.Therefore, the heat exchange tube 144 is naturally made of a material having a high thermal conductivity.

또한, 상기 유출관(146)은 열교환관(144)의 타단과 연결되며, 그 끝단을 안내관(120)과 결합되어 열교환 또는 열평형된 냉각수를 히터코어(113)로 안내하게 된다.In addition, the outlet pipe 146 is connected to the other end of the heat exchange pipe 144, the end is coupled to the guide pipe 120 to guide the heat exchange or heat balanced cooling water to the heater core 113.

이때, 상기 열교환부재(140)는 동일한 재질로 일체로 이루어지는 것이 바람직하다.At this time, the heat exchange member 140 is preferably made of the same material integrally.

그리고, 상기 열교환관(144)의 외주에는 냉각수와 배기가스의 열교환 면적을 극대화하기 위해 핀 또는 요철(도시하지 않음)을 형성하는 것이 바람직하다.In addition, it is preferable to form fins or unevenness (not shown) on the outer circumference of the heat exchange tube 144 to maximize the heat exchange area of the cooling water and the exhaust gas.

한편, 상기 안내관(120)과 유입관(142)의 결합부분에는 선택적으로 냉각수의 방향을 선택하기 위해 삼방밸브(150)가 구비된다.On the other hand, the combined portion of the guide pipe 120 and the inlet pipe 142 is provided with a three-way valve 150 to selectively select the direction of the coolant.

즉, 상기 엔진(101)에서 배출되는 냉각수는 선택적으로 열교환부재(140)의 유입관(142) 또는 안내관(120)을 따라 바로 히터코어(113)로 유동되도록 삼방밸브(150)로 조절하게 된다.That is, the coolant discharged from the engine 101 is selectively adjusted to the three-way valve 150 so as to flow directly to the heater core 113 along the inlet pipe 142 or the guide pipe 120 of the heat exchange member 140. do.

상기 삼방밸브(150)는 전자제어에 의해 개폐되도록 하는 것이 바람직하다.The three-way valve 150 is preferably to be opened and closed by electronic control.

그리고, 상기 유출관(146)의 끝단부에는 냉각수의 역류를 방지하기 위해 체크밸브(160)가 구비된다.In addition, a check valve 160 is provided at an end of the outlet pipe 146 to prevent a back flow of the cooling water.

상기 체크밸브(160)는 냉각수가 안내관(120)에서 유출관(146)의 내부로 역류되는 것을 방지하기 위해 설치된다.The check valve 160 is installed to prevent the coolant from flowing back from the guide tube 120 into the outlet pipe 146.

상기와 같이 구성된 본 발명의 작용을 상세히 설명하면 다음과 같다.Referring to the operation of the present invention configured as described above in detail.

먼저 자동차 내부를 난방시 냉각수 온도가 설정치 보다 낮게 되면, 냉각수가 삼방밸브(150)의 유로전환에 의해 열교환부재(140)의 유입관(142)을 따라 배기관(130)의 내부에서 배기가스로부터 열에너지를 얻어 히터코어(113)로 유동되게 된다.First, when the cooling water temperature is lower than the set value when heating the inside of the vehicle, the cooling water from the exhaust gas inside the exhaust pipe 130 along the inlet pipe 142 of the heat exchange member 140 by switching the flow path of the three-way valve 150. It is obtained to flow to the heater core 113.

그리고, 상기 냉각수가 설정치 이상이 되면, 삼방밸브(150)는 유입관(142)방향을 밀폐하고 안내관(120) 방향을 개방하여 냉각수가 안내관(120)을 따라 직접적으로 히터코어(113)로 유동되도록 한다.When the coolant is greater than or equal to the set value, the three-way valve 150 seals the inlet pipe 142 direction and opens the guide pipe 120 direction so that the coolant is directly along the guide pipe 120. To flow.

이때, 상기 냉각수는 체크밸브(160)에 의해 유출관(146)으로 역류되지 않는다.At this time, the cooling water is not flowed back to the outlet pipe 146 by the check valve 160.

그리고, 상기 냉각수의 설정온도는 80 내지 85℃의 범위로 하고, 가장 바람직하게 82℃로 하는 것이 좋다.The set temperature of the cooling water is in the range of 80 to 85 ° C, and most preferably 82 ° C.

또한, 상기 냉각수의 온도가 높을수록 배기가스의 유동을 빠르게 하기 위해 EGR 밸브(117)의 개폐량을 증가시킨다.In addition, the higher the temperature of the cooling water increases the opening and closing amount of the EGR valve 117 in order to speed up the flow of the exhaust gas.

상기한 바와 같이 본 발명에 따른 자동차의 배기가스 열교환 구조에 의하면, 엔진에서 배출되는 냉각수가 히터코어로 유입되기 전에 열교환부재를 통해 배기가스와 열교환되며 2차 가열되기 때문에 별도의 가열장치는 필요 없어 설치비용을 줄일 수 있는 효과가 있다. As described above, according to the exhaust gas heat exchange structure of the vehicle according to the present invention, since the coolant discharged from the engine is heat-exchanged with the exhaust gas through the heat exchange member before being introduced into the heater core and is heated secondary, there is no need for a separate heating device. It can reduce the installation cost.                     

그리고, 상기 냉각수와 배기가스는 관 형상의 열교환부재에서 열교환되기 때문에 열교환되도록 구비된 종래의 EGR 쿨러는 구비하지 않아도 되어 설치비용을 줄일 수 있고, 설치구조를 간단하게 할 수 있는 효과도 있다.In addition, since the cooling water and the exhaust gas are heat-exchanged in the tubular heat exchange member, the conventional EGR cooler provided to exchange heat is not required, thereby reducing installation costs and simplifying the installation structure.

또한, 엔진에서 배출되는 배기가스가 열전도계수가 큰 열교환부재에서 냉각수에 열에너지를 빼앗기기 때문에 유해물질의 활성화를 방지하여 공기오염을 줄일 수 있는 효과도 있다.In addition, since the exhaust gas discharged from the engine deprives the heat energy of the cooling water from the heat exchange member having a large thermal conductivity coefficient, there is also an effect of preventing the activation of harmful substances to reduce air pollution.

Claims (3)

삭제delete 자동차의 엔진으로부터 배출되는 냉각수를 히터코어로 유입하기 위해 안내하는 안내관과, 상기 엔진으로부터 배출되는 배기가스를 안내하는 배기관 및 상기 안내관과 연결되어 상기 냉각수를 유입하기 위한 유입관과, 상기 냉각수와 배기가스를 열교환하도록 상기 유입관에서 연장되어 상기 배기관 내부에 삽설되는 열교환관과, 상기 열교환관에서 연장되어 열교환된 상기 냉각수를 상기 안내관으로 안내하는 유출관으로 이루어진 열교환부재로 구성되는 배기가스 열교환 구조에 있어서,A guide tube for guiding the coolant discharged from the engine of the vehicle to the heater core, an exhaust pipe for guiding the exhaust gas discharged from the engine, an inlet pipe connected to the guide tube and introducing the coolant, and the coolant And a heat exchange member comprising a heat exchange tube extending from the inlet pipe to be inserted into the exhaust pipe so as to heat exchange the exhaust gas, and an outlet pipe guiding the cooling water extended from the heat exchange tube to the guide tube. In the heat exchange structure, 상기 안내관과 유입관의 결합부분에는 선택적으로 상기 냉각수의 방향을 선택하기 위해 삼방밸브가 구비되고;The combined portion of the guide tube and the inlet tube is provided with a three-way valve to selectively select the direction of the cooling water; 상기 유출관의 끝단부에는 상기 냉각수의 역류를 방지하기 위해 체크밸브가 구비되는 것을 특징으로 하는 자동차의 배기가스 열교환 구조.The exhaust gas heat exchange structure of the vehicle, characterized in that the check valve is provided at the end of the outlet pipe to prevent the reverse flow of the cooling water. 삭제delete
KR1020040010713A 2004-02-18 2004-02-18 recycling system of waste gas KR100589261B1 (en)

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KR19990020550A (en) * 1997-08-30 1999-03-25 정몽규 Hydrogen Engine Exhaust Gas Recirculation System
KR100340107B1 (en) * 1999-12-31 2002-06-10 이계안 EGR system
KR20020043726A (en) * 2000-12-04 2002-06-12 이계안 Vehicle cabin heater apparatus using EGR cooler
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KR20030048749A (en) * 2001-12-13 2003-06-25 현대자동차주식회사 Exhaust gas recirculation system and it's control method for rising defrosting efficiency of automobile

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Publication number Priority date Publication date Assignee Title
KR19990020550A (en) * 1997-08-30 1999-03-25 정몽규 Hydrogen Engine Exhaust Gas Recirculation System
KR100340107B1 (en) * 1999-12-31 2002-06-10 이계안 EGR system
KR20020043726A (en) * 2000-12-04 2002-06-12 이계안 Vehicle cabin heater apparatus using EGR cooler
KR100394854B1 (en) * 2000-12-04 2003-08-19 현대자동차주식회사 Vehicle cabin heater apparatus using EGR cooler
JP2002340284A (en) * 2001-05-21 2002-11-27 Toyota Motor Corp Oil temperature control device
KR20030048749A (en) * 2001-12-13 2003-06-25 현대자동차주식회사 Exhaust gas recirculation system and it's control method for rising defrosting efficiency of automobile

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